It's also great practice for developing "radio ears". With PFE's ai chatter going and Live ATC chatter going at the same time, you really have to pay attention to catch instructions intended for you. I'm impressed with how much PFE's ai chatter sounds like the real thing.While you can use the web site directly, there are also a couple of programs that will act as interfaces between the Live ATC site and FS, allowing you to tune the Live ATC channels on your plane's radios. I don't know if it's allowed to mention specific products here, so I won't. The normal price of the one I bought is around $24 US, but I happened to catch it on sale for about half that. I probably would have thought it too expensive at full price.